Of course they can, any team that makes it to a final has a chance of winning the trophy and if they were not strong enough, there's no way they could have progressed as far as the final. Chelsea fans will be watching the Liverpool v Fulham game today with interest, Liverpool hold a 2-1 advantage coming into this game, but this second leg is at the Craven Cottage, so it is going to be interesting and i think Fulham have a small chance. Chelsea would remember their recent defeats in cup finals against Liverpool, so they would either hope to meet them in the final for revenge or they might prefer a London derby final with Fulham.
I think Liverpool has a better chance of winning. They had won the first leg 2-1. So they only need a draw to advance to the Final. And Fulham they must be able to lead by at least 1 goal difference just to continue to extra time. And a 2 goal difference to advance to the Final. So they have a 50% higher chance. So let's talk about the Final match between Liverpool and Chelsea. With Chelsea's current form I think Liverpool will have a bigger chance of winning the Carabao cup. Unless Liverpool are unlucky on the night of the final. Because I think anyone will favor Liverpool more than Chelsea.