A scientist has 4 pieces of copper. Each piece is a different shape and size (samples A through D). The scientist measures the volume and the mass of one sample, but measures only the volume or only the mass of the other samples. Since the scientist knows that copper is a substance, the scientist claims that she can predict what the mass will be of sample B and C. She also claims she can predict what the volume will be of sample D. Using the information in the table below, find the volume of sample D.