:The volume of the cubic is 48 cubic metres.
The cubic metre or cubic meter is the unit of volume in the International System of Units. Its symbol is m³. It is the volume of a cube with edges one metre in length. An alternative name, which allowed a different usage with metric prefixes is the stere still used for dry to measure
As per the question
This box can be packed with 48 unit cubes.
Since each cube has a volume of 1 cubic metre and the box and fit 48 unit cubes .
So the volume of the box is 48 cubic metres.
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