You can do this but there is an easier way to go about it.
This is what I would do, buy oak chips from your homebrew store, they sell them all over the city here.
They normally come in a small package not much bigger than your hand. One package is enough for 5 gallon batch, they also have toasted oak vs regular which will add some colour perhaps.
The chips you can easily sanitize, boil water toss the chips in for 2-3 mins then strain and ziploc until ready. Toss then right into secondary or use sanitized hop bag.
I would age it for 14-20 days. Some people will say this is too long, if you want oak taste, you want oak taste. Cut it back to 7 days for a lighter taste.
You can also use 1/2 a cup of Crown Royal Whisky and soak the oak chips for 10 days strain and toss to secondary