Answer:
5.3 mL
Explanation:
We solve this problem using Archimede's principle, which states that the volume displaced by a submerged object is equal to the volume of the object.
With that in mind we calculate the volume of water displaced by the medallion:
As the medallion displaced 5.3 mL of water when submerged, the volume of the medallion is also 5.3 mL.