O café é um dos principais produtos comercializados no Brasil.

English Translation

Coffee is one of the staples of Brazil.

This is not a good translation.
The translation given “Coffee is one of the staples of Brazil” translates back to
O café é um dos alimentos básicos do Brasil.
The sentence given translates to: Coffee is one of the main products sold in Brazil.
The meaning of the verb comercializar is to market, sell, commercialize