Here is how I wrap tin foil to catch Steelhead, Salmon..
That's like max 2 inch in length.For sea fishing, I used 4 inch and above and on two hooks. Snell two hooks one after the other on the leader..One hook should be close to the tail of the Tin foil.
If you want to troll then try this one :
Tie 1 to 8Oz of weight to your main line.Before you tie your weight to the main line, make a swivel pass thru the main line. Dont tie the swivel to the main line.On the other end/eye of the swivel tie a strong leader of your choice and tie this to the tin foil lure.You can tie the same rig with a three way swivel, however it will be fixed.
For sea fishing you need both flash and scent.Tin foil has plenty of flash.For scent try this: Take some cotton balls, roll them thin and fix them in the hook or in between the tin foil.Soak the wrap in anchovy oil or cod oil or any fish oil. This will give you amazing result and i am pretty confident of it.
I never used cotton balls but i did dip my tin foil in crushed salmon eggs and cod oil(for sea fishing) and I did get the results.
Try it and let me know how it went..!!