Slow way for begginners to earn F2P money!

This method makes lots of money at a slow rate. The trick to it is using the G.E to your advantage. With this method, you earn a bit of smithing xp.
This method requires money to start with!

In this method. You buy Tin and Copper ores for medium price in G.E You take them to your favorite furnace and smelt them. With the bronze bars you get in return according to my calculations. They earn you 80gp per par.

This may not seem like much, but to those who are F2P with low leveled skills, this method can help earn about 200k in about 2 hours.

Criticism welcomed!