If the county commissioners decide to formally consider adopting code home rule, the county commissioners shall: hold at least two public hearings in the county on the proposal; and publish notice of the date, time, and place of each public hearing in at least one newspaper of general circulation in the county: at least three times; at weekly intervals; and in a period of not more than 30 days before the first public hearing. At the hearings, the residents and taxpayers of the county shall be given the opportunity to be heard on the proposal to adopt code home rule.