"There's great belief that we can contend for trophies. This is important, not only for the players, but also for the club in general," he told the club's official website.
"There is real hope that we can bring trophies to Arsenal. Every player is conscious of this and we're going to do all we can to achieve it this season.
"We've had a few changes at the club and there's a good spirit among the group - we're all enjoying playing together. Everyone is happy and it goes without saying that the group is up for having a good season."
Gervinho scored four goals for the Gunners last season.