I wanted to ask that how can i trade from someone from silver server while i am in gold server? Is it even possible?!

Hello!

It's technically possible but you'll need to transfer from gold to silver by using the dashboard. It's the only way to do it since there is no immediate cross-server trade.

When connecting on the dashboard you'll see this :

[spoiler=Dashboard]

 

 

Once you access this tab, you'll be free to transfer your current character onto the other server and be able to trade there.

 

It's worth noting that you get a free server transfer every 30 days. If you'd like to transfer back again before the 30 days window expire you will need to pay 100 coins (From the coin shop) for each transfer.

 

Hope your question has been answered, have a good day!