Ampadu spent his younger years at Chelsea, though struggled to break through at Stamford Bridge.
He said: "I understand why people might dwell on my past, but that’s gone. I had some good memories, but didn’t manage to play in that Europa League final. Hopefully I get a chance to play in this one."
Instead, Ampadu admits their promotion playoff win against Southampton two years ago is the most significant Wembley memory.
"With Leeds United, that’s our last memory there,” he says. “But you have to park that, remember how you felt and do everything you can to try to avoid that feeling again.
"When you’re in the momentum of the game and you've got that adrenaline, you don’t focus on that.
"We are in this to make memories, to have those moments with the fans – as many as we can create and enjoy with the fans.
"At the end of the last home game you could hear them singing about Wembley so we know they are going to be excited for it
"It’s going to be a big day for the club but we don’t just want to be there for it to be a big day. We are going there with an aim.
"We know it’s going to be a difficult game but we know what we can bring to this game, the confidence we have in this squad and our ability to get to that final."