Basically, he trained at the École des Beaux-Arts under Ary Scheffer, exhibited at the Salon early in his career and eventually became a Chevalier de la Légion d’Honneur. At some point in his career Goupil painted scenes related to the French Revolution, but these didn't appear in Google images. What I did find were several images of paintings of pretty young women clothed in elaborate costumes of silky or patterned fabrics. He was good at depicting such materials, which gave him a useful market niche for his works.
As best I can tell, he was not directly connected to the Goupil art dealership firm, if this Wikipedia entry is any guide.
Below are examples of Goupil's paintings featuring fabrics.