A cube has a total of 6 squares that make up its surface.
This is because a cube has six faces, and each face is a square. Each square is identical in size and shape, and they are all arranged perpendicular to each other. If you visualize a standard dice, you can see that it is a perfect example of a cube with six square faces.
Understanding the number of faces and their shapes is key when studying three-dimensional geometric figures like cubes. So, to sum it up, the surface of a cube consists of six squares, one for each of its faces.