Aubameyang slotted in with his last touch of the night
Pierre-Emerick Aubameyang slotted in his second of the night impressively to take it to 3-0.
Arsenal had broken the deadlock with a cool finish from the Gabon international in the first half to give the Arsenal side an inevitable-looking lead.
The home side built on that early in the second half, when striker Danny Welbeck managed to heade home a second.
Aubameyang was in search of his second, and made the most of a defensive mix up by the Vorskla back line.
The former Dortmund man dropped his shoulder on the edge of the area, and bent the ball low in to the bottom left corner, with the keeper not even attempting to make a save such was the accuracy.
Emery immediately substituted the forward, prompting a standing-ovation from the Arsenal crowd.