Juve defeated Palermo 1-0 on Sunday.
"It was a great Juve performance," Barzagli told the club's official website. "We have shown that the loss to Milan has made us grow as a team.
"The only drawback from the game was we needed to be more clinical.
"Now we have the Coppa Italia - it is an important match for us and is one of the objectives for our season.
"We will give 110% to win."