Concept:The volume of a cube is found by multiplying its length, breadth, and height, which are all equal.Explanation:For a cube, every side has the same length.Here, the side of the cube is given as 5cm.Use the formula:Volume=side×side×sideSubstitute the side length:Volume=5cm×5cm×5cmVolume=125cm3Therefore, the cube occupies 125 cubic centimetres of space.Answer:125cm3