Final answer:
The formula PbSO4 is correctly named lead(II) sulfate, indicating the +2 oxidation state of lead in this compound.
Step-by-step explanation:
The correct name for the compound with the formula PbSO4 is lead(II) sulfate. The Roman numeral (II) indicates the oxidation state of lead, which is +2 in this compound. The sulfate ion has a charge of -2. In naming ionic compounds that include a transition metal with more than one possible oxidation state, it is important to specify the oxidation state of the metal in the name of the compound using Roman numerals.