Final answer:
The metal described in the question is copper. Copper is the best conductor of heat and electricity among metals and was extensively used in coins in the past. It is still used today for fine eating utensils and decorative objects.
Step-by-step explanation:
The metal described in the question is copper.
Copper is widely known as the best conductor of heat and electricity among metals. It was commonly used in the manufacture of coins in the past, but its cost has made it less viable for that purpose. However, copper is still used today for fine eating utensils and decorative objects.