Answer with explanation:
Dimension of Larger Rectangular Prism = 8 ft by 6 ft by 2 ft.
Now, A Smaller rectangular Prism has been cut of a Larger rectangular prism.
So, Side of Smallest prism which is in the shape of Square prism =2 ft
Volume of Square Prism or prism that was removed = (Side )³ cubic feet
 =(2)³ cubic feet
  =8 cubic feet