The 20-year-old, who has joined for an initial period of one month, scored on his debut for County in their 1-1 draw against Crewe Alexandra at the weekend.
"It's my job to score the goals to help the club get to the playoffs," he told BBC Sport.
"I'm hoping to extend the loan until the end of the season if things go well. I just want to work my hardest and help the team win."
Cofie also spent a period with Sheffield United earlier in the season, where he scored two goals in 16 appearances.