The top three teams at the event will represent Africa at the 2020 Tokyo Olympic Games in Japan.
“We have a good chance of winning the tournament," Tanko told Kwese Free Sports.
"We are one of the favourites.
"We will go for the trophy but if we do not get that, we will go for silver or bronze to help us to the Olympic Games.
"This is our mentality heading into the tournament and I am sure we will get one of the three medals up for grabs.”
Ghana will begin their competition with a clash with Cameroon on October 8.
The Black Meteors then face Egypt on November 11 before wrapping up the group series against Mali three days later.