I know I am very late in the game, but the snake in your photo is a harmless Texas Rat Snake, not a Copperhead. Google "Texas Rat Snake" and see what you find.
For starters, your snake is too narrow and shiny to be a Copperhead. The pattern is wrong too: Copperheads have dark bands that are narrowest down the back and widest on the sides, so that when the snake is viewed from the side it appears to have "hershey kiss" shapes on it, and when viewed from above the dark bands form "hourglass" or "bowtie" shapes. Once you get a good idea of what this pattern looks like, you will find that no harmless species have a similar pattern.
Given that you made this misidentification and none of your commenters corrected, I'd say it's reasonable to believe that most, if not all of the "Copperhead" sightings you and the other commenters have had have actually been harmless snakes, beneficial because they eat mice and rats (more dangerous than any snakes in the big picture) and will often actually eat harmless snakes or otherwise limit their numbers via competition for space and food.
Many harmless snake species, like yours, will strike at you if you come close or mess with them. They are not "aggressive" or trying to "attack" - they are merely trying to defend themselves.
