Answer
$7570.82$ cubic centimeters.
Work Step by Step
First we must convert the measurement of $2.0 gallons$ to cubic centimeters. Using the conversion factor $1 U.S Liquid Gallon$ = $3785.41 cubic centimeters$ we can find that $2 Gallons$ = $7570.82 cubic centimeters$ because:
$$2 Gallons\times\frac{3785.41 cubic centimeters}{1 Gallons} = 7570.82 cubic centimeters $$