Save your money on the corn and put out some minerals. Not only is a trophy rock or mineral lick a lot cheaper, the deer would much rather have the minerals anyways.
Just my opinion.
The cam is on a salt lick thats been there for about 8yrs. I just put the corn around it. There wearing the lick out. Its around 10ft in diameter and 2ft deep.
Gotcha. In my experience, once a lick is established you really don't need any corn.
Several years ago the deer convinced me...
I had a corn feeder about 25 yards from an established mineral lick and I had cameras on both. I would get plenty of does and more coons than I could count on that corn feeder, but almost all of the buck pictures I got were over the lick. They would come to the lick almost every day, but would not even get near that feeder. When corn got to $7.00 a bag, I quit buying it all together and it hasn't impacted my ability to inventory my deer one bit.
I have my cameras over licks in the summer, food plots in early fall and scrapes once things heat up. Works great for me.