Substitute Alexandre Lacazette netted the third, also from the spot, after he had been fouled as Arsenal clinched back to back league wins for the first time since November. "I'm 100 percent confident we will stay up", he said.
Stoke have managed just one win since Christmas and will have to conjure up some more points if they are to avoid relegation.
"I've been playing in a lot of teams across Europe and I've been playing in teams where we have been doing well".
But Butland could do nothing to stop Aubameyang turning home his second of the afternoon, before Lacazette converted from the spot after he had been shoved over by Ndiaye.
Arsenal further tested Butland's goal after Bellerin squared the ball for Elneny, but his shot got blocked, but immediately after Monreal's shot was comfortably caught by Butland.
Tottenham's fans celebrated long and loud after the final whistle sounded and they will now be confident of watching Champions League football in their new stadium next season. He took down Eric Dier's pass and fired the ball past Chelsea's keeper.
"Arsenal are full of quality, we know what they're about, and we need to make it hard for them by making them run, keeping the ball as best as we can and of course score goals and try to keep a clean sheet".
The Gunners had been terrible in the first half and it was easy to think that they had their minds on Thursday's Europa League quarter-final, first-leg tie against CSKA Moscow.
The Gunners were booed off at half-time at Emirates Stadium after seeing Aaron Ramsey clip the crossbar with their only clear chance of the first 45 minutes.
Cast your mind back to August 2017, at the start of this season, when Stoke City beat Arsenal at the bet365 and we all thought they would finish ninth again. "It was a game-changer".